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Finding the Fourth Proportional to 92,512.85, 138,726 and 33,340.73

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Solution

The fourth proportional to 92,512.85, 138,726 and 33,340.73 is: 49,995.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,512.85 : 138,726 = 33,340.73 : x
  2. Step 2: Convert to fraction form
    92,512.85/138,726 = 33,340.73/x
  3. Step 3: Cross multiply
    92,512.85x = 138,726 × 33,340.73
  4. Step 4: Simplify right side
    92,512.85x = 4,625,225,416.35
  5. Step 5: Solve for x
    x = 4,625,225,416.35/92,512.85
  6. Step 6: Final answer
    x = 49,995.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.